Book Image

Python GUI Programming with Tkinter, 2nd edition - Second Edition

By : Alan D. Moore
4.5 (2)
Book Image

Python GUI Programming with Tkinter, 2nd edition - Second Edition

4.5 (2)
By: Alan D. Moore

Overview of this book

Tkinter is widely used to build GUIs in Python due to its simplicity. In this book, you’ll discover Tkinter’s strengths and overcome its challenges as you learn to develop fully featured GUI applications. Python GUI Programming with Tkinter, Second Edition, will not only provide you with a working knowledge of the Tkinter GUI library, but also a valuable set of skills that will enable you to plan, implement, and maintain larger applications. You’ll build a full-blown data entry application from scratch, learning how to grow and improve your code in response to continually changing user and business needs. You’ll develop a practical understanding of tools and techniques used to manage this evolving codebase and go beyond the default Tkinter widget capabilities. You’ll implement version control and unit testing, separation of concerns through the MVC design pattern, and object-oriented programming to organize your code more cleanly. You’ll also gain experience with technologies often used in workplace applications, such as SQL databases, network services, and data visualization libraries. Finally, you’ll package your application for wider distribution and tackle the challenge of maintaining cross-platform compatibility.
Table of Contents (22 chapters)
19
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20
Index
Appendices

Asynchronous Programming with Thread and Queue

Many times, code that works flawlessly in the simplicity of a test environment encounters problems in the real world; unfortunately, this seems to be the case for the ABQ Data Entry application. While your network functions ran instantaneously in your localhost-only test environment, the lab's slow VPN uplink has exposed some shortcomings in your programming. Users report that the application freezes or becomes unresponsive when network transactions are taking place. Although it does work, it looks unprofessional and is an annoyance to users.

To solve this problem, we're going to need to apply asynchronous programming techniques, which we'll learn about in the following topics:

  • In The Tkinter event queue, we'll learn how to manipulate Tkinter's event processing to improve the responsiveness of the application.
  • In Running code in the background with threads, we'll explore writing multi...